baber/WOPTO huggingface dataset:
Patent GB-1532771-A (GB)
Title: Process for obtaining high-strength steel
IPC: C22C38/38
Filed: 1976-11-26
Abstract: 1532771 Anisotropic steel plate; heattreatment CENTRO SPERIMENTALE METALLURGICO SpA 26 Nov 1976 [28 Nov 1975] 49331/76 Heading C7A Mechanically anisotropic steel is prepared from a composition containing in wt per cent. be pre-heating to 1100-1300‹C and hot-rolling, commencing at 950-1100‹C, to effect 30-60% reduction within that range using a total number of passes in the range 3 to 10. The material is then cooled in air for 30 sees. to 10 minutes to allow complete recrystallization to occur, after which it is subjected to further hot working in 4 to 12 passes between 700 and 900‹C to produce a plate of 6 to 50 mm. thickness (i.e. a total reduction of 75-90% from the original). The conditions are such as to prevent austenite recrystallization between passes. Finally the steel is cooled from the finishing temperature to 500‹C at 0À1 to 10‹C/sec.
Patent GB-1344301-A (GB)
Title: Apparatus for continuous heat treatment of a web of sheet material
IPC: F26B13/10
Filed: 1971-03-20
Abstract: 1344301 Paper-making apparatus HI-FLUX CORP 26 Oct 1971 [30 Oct 1970] 49625/71 Heading D2A [Also in Division F4] A paper web W is heated or cooled e.g. dried, by being conveyed between two woven wire mesh endless belts 12, 14 which move round foraminous rollers 16, 18, 20 and 24, 26, 28 supplied with hot air, each belt 12, 14 being pre-heated before the inlet of the web W. Heated air (900-1000‹F) is introduced into each roller from either or both of its ends, and passes outwards through the cylindrical surface and through openings 32 in the end surfaces, and is exhausted by a fan 10. Rollers 16, 24 are provided with fixed internal partitions 34, 36 to create zones from which the air passes through the rollers 16, 24 to pre-heat the belts 12, 14, the air being collected in a chamber 38, 40 and recirculated through a filter 42, fan 44 and heater 46. The tension of the belts 12, 14 may be adjusted by moving the rollers 20, 28. The roller 26 is driven.
Patent GB-1447782-A (GB)
Title: Heating of comestibles by microwave energy
IPC: A47J36/02
Filed: 1973-10-25
Abstract: 1447782 Oven trays CHEMETRON CORP 25 Oct 1973 [25 Oct 1972] 49759/73 Heading A4D [Also in Divisions H1 and H5] In order to facilitate cooking in a micro-wave oven, food items are arranged on a tray which carries a micro-wave energy sensor able to indicate the receipt of a given quantity of micro-wave energy. As shown, various food items 42-50 (e.g. a roll, potatoe, ice-cream) are warmed in an electromagnetic oven 12 operating at 650 watts and 2450 MHz, the food items being arranged in predetermined positions on a tray 14, 16 such that when placed in the oven, due to the energy distribution in the oven and their predetermined positions, each food item is warmed and brought ready for consumption simultaneously and at the same time as the sensor 18 switches off the supply to the heater of the oven. The food items are individually packed in materials ranging from aluminium to paper chosen to aid the preparation of all the items in the same predetermined time. The tray 14, 16 comprises a supporting part 14 carrying the sensor 18, a template 16 having openings 16A-E to locate the food items, and a cover 22 whereby the food (e.g. a complete meal) may be stored prior to preparation. As in Fig. 4 (not shown) the sensor 18 is a body (26) of a ferrite magnetic material in a housing (28-36) secured in the tray part 14, the body (26) showing a change in magnetic permeability (ferromagnetic to paramagnetic) when it is warmed to its Curie point by the oven heater, the permeability change being arranged to switch off the heater at the predetermined temperature. The control for the oven heater is arranged in a housing 62 in the base of the oven and comprises Figs. 2, 5 (not shown) a pivotally mounted permanent magnet (76) which is caused to move against a spring (82) by the magnetic change in the sensor 18 so that a mercury switch capsule (90) controlling the heater circuit is moved to open its contacts. The tray 14, 16, which may be transparent or opaque (polystyrene and aluminium) to the electromagnetic energy, is located in the oven 12 by guides 66A-C so that the sensor 18 is directly over the control magnet (76), the positioning of the tray in the oven causing the mercury switch capsule (90) to move to close the heater circuit. An adjustable electromagnetic shield (100, 108) may be fitted over the sensor Figs. 6, 7 (not shown). The invention is applicable to the heating of food products or the reconstituting of frozen food and is also said to be suitable for heating other items, e.g. rubber or plastics articles, or pharmaceutical items.
Patent GB-1187400-A (GB)
Title: Traverse Yarn Guides
IPC: B65H57/04
Filed: 1967-11-03
Abstract: 1,187,400. Yarn traverse guide. MASCHINENFABRIK RIETER A.G. 3 Nov., 1967 [3 Nov., 1966], No.50005/67. Heading D1J. A yarn traverse guide comprises a support 2 of synthetic material slidably mounted on at least one fixed guide rail 4, the support including a plurality of outwardly projecting, spaced, elastically deformable lugs 8. The lugs detachably receive a flat connecting member 6 which is rigidly secured to a slotted yarn guide 7. The flat member can be made of metal, e.g. aluminium alloy. Perferably flat member 6 is gripped by cams 9 on the support. The yarn guide 7 can be made of a ceramic material.
Patent GB-1121658-A (GB)
Title: Improved marine life-saving appliance
Inventor: KAY GEORGE WILLIAM
IPC: B63C9/00
Filed: 1964-12-09
Abstract: 1,121,658. Marine life-saving. SCHERMULY Ltd. 8 Dec., 1965 [9 Dec., 1964], No. 50039/64. Heading B7U. A marine life-saving appliance comprises a reel 7, 8 that is furnished with a life-line 13 and is lodged in a container 1 attached to a body harness 12 for a swimmer, the container being rendered buoyant by a block 11 of expanded synthetic-resin material situated in the uppermost portion thereof. During a rescue operation, the appliance is carried by the swimmer towards the person in distress while the freeend 14 of the life-line is secured to the shore; and when the rescue has been effected, the lifeline can be wound on to the reel by rotating a detachable crank-handle 10 on one end 9 thereof to bring the swimmer and the rescued person to the shore. Alternatively, the life-line can be "flaked" i.e. wound as a flat coil, on a former within the container 2.
Patent GB-1121084-A (GB)
Title: Printing of flexible materials
Inventor: DAWSON PETER HAYWARD TRUSSLER
IPC: D06B11/00
Filed: 1964-12-09
Abstract: 1,121,084. Stencilling apparatus. SINGER-COBBLE Ltd. 3 March, 1966 [9 Dec., 1964], No. 50092/64. Heading B6C. A tufted fabric or other web 12 is fed, together with a backing fabric 19, alternately round stencil rollers 11 made of sintered material and guide rollers 16a. Each roller 11 is associated with a vacuum box therebeneath to draw ink, which is supplied through a tube to the inside of the roller, through the roller on to the webs.
Patent GB-1480557-A (GB)
Title: Developing apparatus
IPC: G03G21/10
Filed: 1975-12-08
Abstract: 1480557 Developing apparatus RICOH CO Ltd 8 Dec 1975 [29 Dec 1974] 50216/75 Heading G2H A rotary developing drum 21 is provided with axially spaced guides 28 to direct the flow of cleaning liquid into resevoir 37. The drum is rotated via a gear 27. Support 29 for the guide 28 has an annular recess housing a sealing element in contact with the drum hub. The guide is fixed to the support and prevented from rotating by a stud 31; its lower end 28c is inwardly directed.
Patent GB-1088869-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F23M20/00
Filed: 1965-11-26
Abstract: 1,088,869. Heating air by waste gases. BABCOCK & WILCOX CO. Nov. 26, 1965 [Nov. 27, 1964], No. 50311/65. Heading F4S. In an air heater generally as described in Specification 988,353 in which a combustion air stream for a steam generator is heated as it flows serially over banks (61, 62, 63, Fig. 1) of flue tubes, the tubes extend between upper and lower tube plates and the upper tube plates 58A, 58B of the tube banks 61, 62 are carried in a common supporting structure which is cooled by air bled from the main combustion air stream. This cooling air reduces thermal stresses in the supporting structure caused by the temperature differential between the tubes of the respective banks. As shown, the supporting structure includes ducts 102, 102A for the cooling air. These ducts extend around the perimeter of each of the upper tube plates 58A, 58B. The tube plates are freely movable axially of the tubes and are connected to the structure by flexible bellows 90A, 90B which are protected from ash &e. in the flue gases by shields 92A, 92B. Air tapped from the main stream passing over the tubes, flows through a narrow gap provided between each tube plate edge and adjacent walls 88A, 88B of the supporting structure, to the space behind each bellows member, whereby the latter is kept cool and may therefore be made of a relatively cheap steel. The cooling air passes thence to the ducts 102, 102A by way of apertures 98 in the walls 88A, 88B; and is discharged from the ducts through an outlet 110.
Patent GB-1016796-A (GB)
Title: Improvements in or relating to pesticidal compositions
IPC: B27K3/40
Filed: 1963-12-20
Abstract: A pesticidal composition suitable for use in the preservation of cellulosic material comprising an aqueous dispersion of a heavy metal (i.e. copper, zinc, nickel, cadmium or lead) pentachlorophenolate in a colloidal water-soluble form, said dispersion containing a surface-active agent which does not form complexes or sparingly soluble compounds with said heavy metal. Anion active substances containing an aliphatic hydrocarbon residue, e.g. sodium alkyl sulphonates or sodium alkyl sulphates, are specified.
Patent GB-1069738-A (GB)
Title: Spark ignition apparatus for internal combustion engines
Inventor: PHOENIX LANCELOT
IPC: F02P7/03
Filed: 1964-12-12
Abstract: 1,069,738. Ignition systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 19, 1966 [Dec. 12, 1964j, No. 50678/64. Heading F1B. Spark ignition apparatus for internal combustion engines comprises in combination a capacitor 12, means 11 for charging the capacitor after each spark, a plurality of semi-conductor switches 13 to 16 in circuit with the capacitor, means for rendering the switches conductive in turn to permit discharge of the capacitor through the conductive switch and means whereby discharge of the capacitor through the switches in turn produces sparks at the plugs 21 to 24 of the engine in turn. The switches may be thyristors which are switched on by gate-cathode pulses and switch off automatically when the capacitor has discharged. The thyristors may commence a cycle of operation when one of the thyristors conducts the cycle ending when the last thyristor turns off, the thyristors apart from the last thyristor being associated with magnetic cores 25 to 27 respectively and serving when conductive to drive the associated magnetic core from a first state to a second state and the cathode of each thyristor other than the last thyristor being connected by way of a lead looped around its associated core to the gate of the next thyristor to operate. The means for rendering the switches conductive in turn comprises a generator 33, 35, 36 for producing from the engine a first set of pulses which are applied to the first thyristor to cause it to conduct at the start of each cycle and a second set of more frequent pulses which are applied to all the cores to drive them to their first state, the arrangement being such that when a given thyristor other than the last thyristor has ceased to conduct the next pulse applied to the cores will cause the next thyristor to be turned on. The means for charging the capacitor after each spark may comprise a monostable multivibrator.
Patent GB-1362925-A (GB)
Title: Stethoscope
IPC: A61B7/02
Filed: 1972-11-03
Abstract: 1362925 Stethoscopes AVID CORP 3 Nov 1972 [18 Aug 1972] 50705/72 Heading H4J [Also in Division A5] A stethoscope comprises a pair of arms 10 and 11 each having a short section 14 joined by a smoothly curved portion 15 to a body portion (13) (Fig. 2, not shown) which defines with two walls 17, 18, a rigid channel (16) (Fig. 7, not shown) extending from the tip of the section 14 to a medial spring section 12 formed by a continuation of the wall 18 and carrying a sound tube 29 to which an earpiece 30 is attached. The wall 18 carries a pair of guide fingers 20 at the termination of the body portion (13) and a stiffening button 21 in the medial spring section 12 to control its resiliency. The sound tubes 29 are attached to the respective short sections 14 by lugs 34, and to. a sound apparatus by means of a jack 32.
Patent GB-1096884-A (GB)
Title: Internal combustion steam engine
IPC: F02G5/02
Filed: 1964-12-12
Abstract: 1, 096, 884. Generating steam from internal combustion engine exhaust gases. J. E. KEDDIE Dec. 13, 1965 [Dec. 12, 1964], No.50710/64. Headings F1B and F1Q. An engine comprises means for directing exhaust gases from a first working chamber 1 to a second working chamber 2, the inlet stroke of the second chamber substantially coinciding with the exhaust stroke of the first chamber, and means for admitting water into the second working chamber after compression of the exhaust gases therein, so that during use of the engine the water is vapourized by the heat of the exhaust gases. The resulting steam is used to power a working operation. The water inlet valve 8 may be operated in timed relation to the main inlet and exhaust valves of the second chamber or may discharge water into the second chamber on the pressure in this chamber reaching a predetermined value. Separate lubrication systems are provided for the internal-combustion and steam cylinders. The coolant from a jacket about the internalcombustion cylinder may be circulated to a jacket about the steam cylinder. The engine may comprise a plurality of internal-combustion chambers and a plurality of steam chambers. The internalcombustion and steam portions of the engine may be virtually mechanically independent except for the means for ensuring the proper timing relationship between the two portions.
Patent GB-1114758-A (GB)
Title: Power transmission systems for motor vehicles
Inventor: STOTT THOMAS CHARLES FELIX
IPC: F16H37/08
Filed: 1966-11-11
Abstract: 1,114,758. Transmission arrangement. VAUXHALL MOTORS Ltd. 20 March,1967 [11 Nov., 1966], No. 50715/66. Heading B7H. [Also in Divisions F1 and F2] A motor vehicle transmission arrangement comprises an engine (not shown) located adjacent a final drive unit 10 for driving a pair of road wheels and connected via a clutch 12 to change-speed gearing 16, the drive then being transmitted via transfer gearing 36, 38 to an interaxle differential 42 the output shaft 52 of which is connected to unit 10. A second output shaft 54 drives a second pair of road wheels through a second final drive. The output from the change-speed gearing 16 is via the main shaft 28 but may alternatively be via the layshaft. The gearing 16 is of the constantmesh type with double-ended synchromesh or dog-tooth clutches 30 and an idler gear 32 of a sliding mesh reverse gear train. In modifications the interaxle differential is located at the end of the change-speed gearing remote from the clutch or on the side of the unit 10 remote from the clutch. The transfer gearing may be replaced by a chain or toothed-belt drive.
Patent GB-1285607-A (GB)
Title: Extrusion die assembly
Inventor: MCHARDY JOHN ARTHUR
IPC: B29C48/09
Filed: 1969-10-15
Abstract: 1285607 Netting extrusion dies E I DU PONT DE NEMOURS & CO 15 Oct 1969 [15 Oct 1968] 50718/69 Heading B5A An extrusion die for producing tubular netting comprises relatively rotatable parts 1, 4 which abut as at 9, Fig. 1, via frusto-conical thrust surfaces e.g. as at 12, Fig. 3, and have extrusion orifices 13 and (14), Fig. 4 (not shown), in surfaces which are non-abutting and parallel to the die axis. Between the orifices and thrust surfaces is situated an annular distribution duct 7 and an upstream feed duct 10 may also be provided. The thrust surfaces are preferably of harder material than the remainder of the die, e.g. of steel.
Patent GB-1470864-A (GB)
Title: Continuous manufacture of ethylene oxide and/or propylene  oxide adducts
IPC: C07C43/02
Filed: 1974-11-26
Abstract: 1470864 Ethylene oxide and/or propylene oxide adducts BASF AG 26 Nov 1974 [27 Nov 1973] 51115/74 Heading C2C [Also in Division C3] The invention comprises a process for the continuous reaction of a compound bearing at least one active hydrogen atom with from 1 to 12 times its molar amount of ethylene oxide and/or propylene oxide in a heat-exchanger-surrounded coil reactor tube having a high 1/d ratio, at a temperature which is maintained constant by means of a heating jacket and a pressure at which the reaction mixture is liquid and in the presence of an alkali-reacting material acting as catalyst, wherein (a) the reaction is carried out at a temperature level maintained substantially constant over the length of the coil reactor tube at from 190‹ to 240‹ C., any temperature peaks being present in the first half of the reaction path only and measuring not more t han 30‹C. above the inlet temperature of the mixture, the absolute upper limit of any such temperature peaks being 240‹ C., (b) the l/d ratio of the coil reactor tube is 10<SP>5</SP> : (1 to 10) and the absolute length of the tube is from 100 to 160 metres, and (c) the throughput of the reaction mixture is from 20 to 60 kg/hr. The starting material is suitably a (C 6 -C 22 ) mono- or poly-hydric alcohol or a (C 4 -C 18 ) alkyl phenol.
Patent GB-1537068-A (GB)
Title: Elastic volume wave convolution device
IPC: G06G7/195
Filed: 1975-12-16
Abstract: 1537068 Volume acoustic wave convolvers THOMSON CSF 16 Dec 1975 [17 Dec 1974] 51502/75 Heading H3U An elastic bulk wave device for convolving two signals comprises a non-piezoelectric substrate 1, e.g. of lead molybdate, with transducers 2, 3 to which carrier waves modulated by the signals are respectively applied and which respectively produce transverse (shear) and longitudinal waves. The non-linear interaction of these waves produces a resultant transverse wave which may be received by transducer 2 or a third transducer (not shown). Transducers 2, 3 each comprise two electrodes separated by a piezoelectric layer of a thickness equal to half a wavelength (or a multiple thereof) of the corresponding waves.
Patent GB-1394999-A (GB)
Title: Electric storage batteries
IPC: H01M50/176
Filed: 1971-11-06
Abstract: 1394999 Storage battery terminals JOSEPH LUCAS (BATTERIES) Ltd 19 Oct 1972 [6 Nov 1971] 51667/71 Addition to 1274657 Heading H1B In the storage battery of Specification 1,274,657, which comprise a container divided into a number of cells housing an assembly of plates forming series-connected cells, a lid closing the container and a pair of terminal posts 17 extending through apertures in the lid 21 and a two-part sleeve 25, 27 lines the aperture, the post 17 being secured to each sleeve part and the sleeve parts being resistance welded together, at least one part of each sleeve traps and compresses a resilient sealing ring against the lid 21. As shown, two sealing rings 31, 32 are provided. They may be located in indentations formed in the confronting surfaces of either the lid or the sleeve part.
Patent GB-1452329-A (GB)
Title: Reading disc recordings
IPC: G11B21/03
Filed: 1973-11-08
Abstract: 1452329 Automatic control of position PHILIPS ELECTRONIC & ASSOCIATED INDUSTRY Ltd 8 Nov 1973 [11 Nov 1972] 51849/73 Heading G3R In apparatus for reading information from a disc shaped carrier the scanning point is controlled radially by a first control signal and tangentially by a second control signal, the first control signal being derived from a position error detector and the second control signal from means providing a phase shift equivalent to 90 degrees of disc rotation. The disc may be magnetic but as shown is optical, a light source 4 being imaged at a and thence reflected by mirrors 9 and 15 on to detector 21. This comprises an information detector 22 and a grating-like position detector 23. The light spot a embraces many (e.g. 50) tracks so that the image received at 23 consists of light and dark bands; their relationship with the grating produces a radial position error signal which is amplified at 26 to control tilting of mirror 9 about pivot 12, thus maintaining constant the radial position of the image on the detector. As shown, the output of amplifier 26 is also applied to a phase shifting network 27, which may comprise an integrator, to control the tilt of mirror 15 about a longitudinal axis, and therefore the tangential position of the image. Alternatively, mirror 9 may be connected to a tachogenerator whose output will be 90 degrees out of phase with displacement, and may thus be used to control mirror 15 directly, or the output of this tachogenerator may be compared with the phase shifted output of another tachogenerator associated with mirror 15, the difference being used as the control signal for 15 Fig. 3 (not shown).
Patent GB-1496368-A (GB)
Title: Polyester film
IPC: C08L67/00
Filed: 1975-12-19
Abstract: 1496368 Polyester film and laminates TOYOBO CO Ltd 19 Dec 1975 [19 Dec 1974] 52086/75 Headings B5B and B5N [Also in Division C3] A film is made from a blend (B) comprising (i) a polyester formed from dibasic acids, of which 80% molar is terephthalic acid, and glycol(s) (G), and (ii) a block copolyester (E) consisting of a crystalline polyester segment (C) and a soft polymer segment (S), such that the homopolymers corresponding to (C) and (S) have melting or softening point of #170 C. and #100 C. respectively, and (S) has number av. M.W. 400-8000; there being 0À5-10% (S) by wt. based on (B). (G) may be ethylene glycol. (C) may be a polyester, copolyester, poly(ether ester) or poly(amidoester); e.g. it may be predominantly derived from terephthalic acid and ethylene glycol or tetramethylene glycol. (S) may be a poly(alkylene oxide), polylactone, or polyester; it may predominantly comprise polyethylene oxide or polytetramethylene oxide. (E) may comprise 5-95% wt. (S). Weight ratio (i)/(ii) may be from 99'4/0À6 to 20/80. The film may be drawn 1À2 to 6 times uniaxially or biaxially and may be treated by corona discharge or flame, or with an acid. It may be printed with a cellulose-derivativecontaining printing ink, and the printed or non- printed side may be laminated to a polymer film, e.g. of terephthalate polyester or of polyethylene. An isocyanate or alkyl titanate anchor coating agent may be employed in the lamination process.
Patent GB-1122034-A (GB)
Title: Process for the preparation of azines
Inventor: JENKINS TREVOR
IPC: C01B21/16
Filed: 1964-12-22
Abstract: Azines are prepared by reacting gaseous chlorine with aqueous ammonia in the presence of a ketone or aldehyde and a base which is wholly or substantially wholly dissociated in aqueous solution, the chlorine and the base being fed at the same time to the reaction in a mole ratio of between 1:1.5 to 1:4, at a temperature up to the boiling point of the carbonyl compound at the pressure employed.  Examples describe processes using methyl ethyl ketone, acetone or diethyl ketone as the ketone reactant and sodium or potassium hydroxide as the base.